<?php
/*
 * Copyright (c) 2008 Sergey Bondari, bondari@bondari.net
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

namespace Mosaic\System;


/**
 * Content request
 *
 * Request for content generation from web server. Response is array('body'=>Content, 'headers' => array of response headers).
 *
 * @package System
 * @subpackage Requests
 */
class HTTPContentRequest extends Request {
	protected $__REQUEST_TYPE = RequestType::HTTP_CONTENT;

	/**
	 * HTTP request headers
	 * @var array
	 */
	protected $headers = array();

	/**
	 * HTTP request body  (POST body)
	 * @var string
	 */
	protected $body = NULL;
	
	/**
	 * Class constructor
	 *
	 * Gets a MCGI packet with SCGI data and reads body and headers from it
	 *
	 * @param \Mosaic\MCGI\Packet
	 */
	function __construct(\Mosaic\MCGI\Packet $mcgi = NULL) {
		parent::__construct();
		if (is_object($mcgi)) {
			$this->headers = $mcgi->getHeaders();
			unset($this->headers['SCGI']);
			unset($this->headers['CONTENT_LENGTH']);
			$this->body = $mcgi->getBody();
		}
	}

	/**
	 * All headers getter
	 *
	 * @return array Array of headers
	 */
	public function getHeaders() {
		return $this->headers;
	}

	/**
	 * Header value getter
	 *
	 * @param string Header name
	 * @return string Header value
	 */
	public function getHeader($key) {
		return $this->headers[$key];
	}

	/**
	 * Request body getter
	 *
	 * @return string Request body
	 */
	public function getBody() {
		return $this->body;
	}


	/**
	 * Serializes instance into the MCGI packet
	 *
	 * @return \Mosaic\MCGI\Packet
	 */
	public function createMCGIPacket() {
		$mcgi = parent::createMCGIPacket();
		foreach ($this->headers as $k => $v) {
			$mcgi->setHeader('__'.$k, $v);
		}
		$mcgi->setBody($this->body);
		return $mcgi;
	}


	/**
	 * Unserializes instance from MCGI packet
	 *
	 * @param \Mosaic\MCGI\Packet
	 * @return void
	 */
	public function fillFromMCGIPacket(\Mosaic\MCGI\Packet $mcgi) {
		foreach ($mcgi->getHeaders() as $k => $v) {
			if (strpos($k, '__') === 0) {
				$this->headers[ltrim($k, '_')] = $v;
			}
		}
		$this->body = $mcgi->getBody();
		return parent::fillFromMCGIPacket($mcgi);
	}


}

